Autonomous System details

AS37918

NTT, Inc.  ·  ntt.co.jp

Japan

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AS37918 – NTT, Inc.

Field Value
Country Japan
Website ntt.co.jp
Hosted domains 0
IPv4 addresses 69,376
IPv6 addresses 1,208,925,819,614,629,200,000,000
ASN type Business
Registry jpnic
Updated 4 months ago on Dec 20, 2025

IP Ranges

Netblock Company Num of IPs
129.60.0.0/16 Nippon Telegraph and Telephone Corporation 65,536
129.60.0.0/17 Nippon Telegraph and Telephone Corporation 32,768
129.60.128.0/17 Nippon Telegraph and Telephone Corporation 32,768
192.68.236.0/23 Nippon Telegraph and Telephone Corporation 512
192.68.240.0/23 Nippon Telegraph and Telephone Corporation 512
192.68.246.0/23 Nippon Telegraph and Telephone Corporation 512
192.68.235.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.236.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.237.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.238.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.239.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.240.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.241.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.242.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.243.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.244.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.245.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.246.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.247.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.248.0/24 Nippon Telegraph and Telephone Corporation 256
192.68.249.0/24 Nippon Telegraph and Telephone Corporation 256

Netblock Company
2001:df0:45::/48 NTT Loboratorie's Official Network, Telecom Carrier Laboratories
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WHOIS Details

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                                                ASHandle:       AS37918
                                                OrgID:          AS37918
                                                ASName:         AS37918
                                                ASNumber:       AS37918
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are no domains currently hosted on this ASN.

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Peers

There are 13 peers for this ASN.

Peers Name
AS140627 OneQode
AS17639 Converge ICT Solutions Inc.
AS20485 Joint Stock Company TransTeleCom
AS24482 SG.GS
AS2497 Internet Initiative Japan Inc.
AS2907 Research Organization of Information and Systems, National Institute of Informatics
AS45489 Sri Lanka Telecom PLC, GLobal Peering
AS4775 Globe Telecoms
AS49544 i3D.net B.V
AS6939 Hurricane Electric LLC
AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
AS9002 RETN Limited
AS9370 SAKURA Internet Inc.
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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS2497 Internet Initiative Japan Inc.
AS2907 Research Organization of Information and Systems, National Institute of Informatics
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

1 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
129.60.39.156 AS37918 NTT, Inc. 1.45ms from Tokyo, JP

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
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73.78.36.126 AS7922 Comcast Cable Communications, LLC 2.42ms from Denver, US
130.79.165.254 AS2259 Renater 9.16ms from Geneve, CH
27.66.108.62 AS7552 Viettel Group 8.16ms from Ho Chi Minh City, VN
175.120.159.94 AS9318 SK Broadband Co Ltd 3.38ms from Incheon, KR
105.233.40.110 AS36874 Cybersmart 0.23ms from Johannesburg, ZA
102.211.131.254 AS37645 Finstar - Sociedade de Investimento e Participacoes S.A 0.84ms from Luanda, AO
89.141.59.14 AS12430 VODAFONE ESPANA S.A.U. 8.72ms from Madrid, ES
156.98.115.254 AS1998 State of Minnesota 1.72ms from Minneapolis, US
134.17.143.254 AS25106 Mobile TeleSystems JLLC 1.16ms from Minsk, BY
95.79.175.254 AS42682 JSC ER-Telecom Holding 6.22ms from Moscow, RU
2.13.123.30 AS3215 Orange S.A. 8.52ms from Paris, FR
39.86.235.238 AS4837 CHINA UNICOM China169 Backbone 4.84ms from Qingdao, CN
23.20.4.206 AS14618 Amazon.com, Inc. 0.26ms from Reston, US
122.178.86.142 AS24560 Bharti Airtel Ltd., Telemedia Services 11.23ms from Saint Thomas Mount, IN
220.118.66.254 AS4766 Korea Telecom 1.05ms from Seoul, KR
148.5.86.254 AS16509 Amazon.com, Inc. 0.72ms from Sydney, AU
23.49.80.206 AS16625 Akamai Technologies, Inc. 0.10ms from Toronto, CA
206.225.22.190 AS44832 AlphaPhone Telekommunikations GmbH 1.30ms from Vienna, AT
92.38.92.126 AS209954 Star-Telecom Ltd. 3.92ms from Yekaterinburg, RU
178.40.125.30 AS6855 Slovak Telekom, a.s. 7.88ms from Bratislava, SK
8.17.179.254 AS3356 Level 3 Parent, LLC 0.72ms from Chicago, US
50.198.3.222 AS7922 Comcast Cable Communications, LLC 5.66ms from Chicago, US
91.10.179.78 AS3320 Deutsche Telekom AG 2.69ms from Frankfurt am Main, DE

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f4 -m8 129.60.40.0
traceroute to 129.60.40.0 (129.60.40.0): 8 hops max, 52 byte packets
4 [AS174] 154.54.82.141 6.643 ms
5 [AS174] 154.54.165.133 27.424 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Chicago, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS37918 at robtex.

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